Fix date in motd

roles/sshd/templates/motd.j2

@@ -22,7 +22,7 @@ Data on this system is regularly backed up automatically.
   Added gitpkg, an experimental script written to maintain GNOME git packages.
   May also fit other packages.
 
-March 20, 2018
+March 20, 2019
   pkgbuild.com was moved to a new server (again)! This one has 48 threads and
   a RAID0 btrfs NVMe. Should make things pretty fast.
 {% endif %}